This application note is for R&D designers and engineers working on high-speed digital designs. It addresses jitter measurements in digital circuits, how the different measurement techniques are best applied, and how these decisions may change as the data rates increase.

Clock channel jitter amplification factor in terms of transfer function or S-parameters is derived. Amplification is shown to arise from smaller attenuation in jitter lower sideband than in the fundamental. Amplification scaling with loss is obtained.

The Kramers-Kronig relation lets us build a causal time-domain model from bandlimited s-parameters. This pictorial proof aids understanding of the physics of causality and hence the validity of this approach.

This white paper shows how to replace a multi-dimensional sweep of a long running PRBS time-domain simulation (including manual data evaluation) by short, channel-pulse characterization in the Advanced Design System to efficiently optimize a channel.

This is a technical note that was featured in the AMS Newsletter, Volume 1, Issue 2. This technical note discusses the problems that engineers have with signal integrity and solutions to help address the problems.